[PATCH net-next v4 5/5] selftests: net: bridge: add MRC and QQIC field encoding tests
Ujjal Roy <[email protected]> Sun, 12 Apr 2026 11:10:47 +0000
| Newsgroups | gmane.linux.network.bridge,gmane.linux.network,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
Enhance vlmc_query_intvl_test and vlmc_query_response_intvl_test in bridge_vlan_mcast.sh to validate IGMPv3/MLDv2 protocol compliance for MRC and QQIC field encoding across both linear and exponential ranges. TEST: Vlan multicast snooping enable [ OK ] TEST: Vlan mcast_query_interval global option default value [ OK ] INFO: Vlan 10 mcast_query_interval (QQIC) test cases: TEST: Number of tagged IGMPv2 general query [ OK ] TEST: IGMPv3 QQIC linear value 60 [ OK ] TEST: MLDv2 QQIC linear value 60 [ OK ] TEST: IGMPv3 QQIC non linear value 160 [ OK ] TEST: MLDv2 QQIC non linear value 160 [ OK ] TEST: Vlan mcast_query_response_interval global option default value [ OK ] INFO: Vlan 10 mcast_query_response_interval (MRC) test cases: TEST: IGMPv3 MRC linear value 60 [ OK ] TEST: IGMPv3 MRC non linear value 160 [ OK ] TEST: MLDv2 MRC linear value 30000 [ OK ] TEST: MLDv2 MRC non linear value 60000 [ OK ] Signed-off-by: Ujjal Roy <[email protected]> --- .../net/forwarding/bridge_vlan_mcast.sh | 150 +++++++++++++++++- 1 file changed, 142 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh b/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh index e8031f68200a..9f9f33d58286 100755 --- a/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh +++ b/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh @@ -162,14 +162,27 @@ vlmc_query_cnt_setup() { local type=$1 local dev=$2 + local match=$3 if [[ $type == "igmp" ]]; then - tc filter add dev $dev egress pref 10 prot 802.1Q \ + # This matches: IP Protocol 2 (IGMP) + tc filter add dev "$dev" egress pref 10 prot 802.1Q \ flower vlan_id 10 vlan_ethtype ipv4 dst_ip 224.0.0.1 ip_proto 2 \ + action continue + # AND Type 0x11 (Query) at offset 24 after IP + # IP (20 byte IP + 4 bytes Option) + match=(match u8 0x11 0xff at 24 $match) + tc filter add dev "$dev" egress pref 20 prot 802.1Q u32 "${match[@]}" \ action pass else - tc filter add dev $dev egress pref 10 prot 802.1Q \ + # This matches: ICMPv6 + tc filter add dev "$dev" egress pref 10 prot 802.1Q \ flower vlan_id 10 vlan_ethtype ipv6 dst_ip ff02::1 ip_proto icmpv6 \ + action continue + # AND Type 0x82 (Query) at offset 48 after IPv6 + # IPv6 (40 bytes IPv6 + 2 bytes next HDR + 4 bytes Option + 2 byte pad) + match=(match u8 0x82 0xff at 48 $match) + tc filter add dev "$dev" egress pref 20 prot 802.1Q u32 "${match[@]}" \ action pass fi @@ -181,7 +194,53 @@ vlmc_query_cnt_cleanup() local dev=$1 ip link set dev br0 type bridge mcast_stats_enabled 0 - tc filter del dev $dev egress pref 10 + tc filter del dev "$dev" egress pref 20 + tc filter del dev "$dev" egress pref 10 +} + +vlmc_query_get_intvl_match() +{ + local type=$1 + local version=$2 + local test=$3 + local interval=$4 + + if [ "$test" = "qqic" ]; then + # QQIC is 8-bit floating point encoding for IGMPv3 and MLDv2 + if [ "${type}v${version}" = "igmpv3" ]; then + # IP 20 bytes + 4 bytes Option + IGMPv3[9] + if [[ $interval -lt 128 ]]; then + echo "match u8 0x3c 0xff at 33" + else + echo "match u8 0x84 0xff at 33" + fi + elif [ "${type}v${version}" = "mldv2" ]; then + # IPv6 40 + 2 next HDR + 4 Option + 2 pad + MLDv2[25] + if [[ $interval -lt 128 ]]; then + echo "match u8 0x3c 0xff at 73" + else + echo "match u8 0x84 0xff at 73" + fi + fi + elif [ "$test" = "mrc" ]; then + if [ "${type}v${version}" = "igmpv3" ]; then + # MRC is 8-bit floating point encoding for IGMPv3 + # IP 20 bytes + 4 bytes Option + IGMPv3[1] + if [[ $interval -lt 128 ]]; then + echo "match u8 0x3c 0xff at 25" + else + echo "match u8 0x84 0xff at 25" + fi + elif [ "${type}v${version}" = "mldv2" ]; then + # MRC is 16-bit floating point encoding for MLDv2 + # IPv6 40 + 2 next HDR + 4 Option + 2 pad + MLDv2[4] + if [[ $interval -lt 32768 ]]; then + echo "match u16 0x7530 0xffff at 52" + else + echo "match u16 0x8d4c 0xffff at 52" + fi + fi + fi } vlmc_check_query() @@ -191,9 +250,13 @@ vlmc_check_query() local dev=$3 local expect=$4 local time=$5 + local test=$6 + local interval=$7 + local intvl_match="" local ret=0 - vlmc_query_cnt_setup $type $dev + intvl_match="$(vlmc_query_get_intvl_match "$type" "$version" "$test" "$interval")" + vlmc_query_cnt_setup "$type" "$dev" "$intvl_match" local pre_tx_xstats=$(vlmc_query_cnt_xstats $type $version $dev) bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_querier 1 @@ -201,7 +264,7 @@ vlmc_check_query() if [[ $ret -eq 0 ]]; then sleep $time - local tcstats=$(tc_rule_stats_get $dev 10 egress) + local tcstats=$(tc_rule_stats_get "$dev" 20 egress) local post_tx_xstats=$(vlmc_query_cnt_xstats $type $version $dev) if [[ $tcstats != $expect || \ @@ -441,6 +504,7 @@ vlmc_query_intvl_test() check_err $? "Wrong default mcast_query_interval global vlan option value" log_test "Vlan mcast_query_interval global option default value" + log_info "Vlan 10 mcast_query_interval (QQIC) test cases:" RET=0 bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_startup_query_count 0 bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_interval 200 @@ -448,8 +512,42 @@ vlmc_query_intvl_test() # 1 is sent immediately, then 2 more in the next 5 seconds vlmc_check_query igmp 2 $swp1 3 5 check_err $? "Wrong number of tagged IGMPv2 general queries sent" - log_test "Vlan 10 mcast_query_interval option changed to 200" + log_test "Number of tagged IGMPv2 general query" + RET=0 + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_igmp_version 3 + check_err $? "Could not set mcast_igmp_version in vlan 10" + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_mld_version 2 + check_err $? "Could not set mcast_mld_version in vlan 10" + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_interval 6000 + check_err $? "Could not set mcast_query_interval in vlan 10" + # 1 is sent immediately, IGMPv3 QQIC should match with linear value 60s + vlmc_check_query igmp 3 $swp1 1 1 qqic 60 + check_err $? "Wrong QQIC in generated IGMPv3 general queries" + log_test "IGMPv3 QQIC linear value 60" + + RET=0 + # 1 is sent immediately, MLDv2 QQIC should match with linear value 60s + vlmc_check_query mld 2 $swp1 1 1 qqic 60 + check_err $? "Wrong QQIC in generated MLDv2 general queries" + log_test "MLDv2 QQIC linear value 60" + + RET=0 + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_interval 16000 + check_err $? "Could not set mcast_query_interval in vlan 10" + # 1 is sent immediately, IGMPv3 QQIC should match with non linear value 160s + vlmc_check_query igmp 3 $swp1 1 1 qqic 160 + check_err $? "Wrong QQIC in generated IGMPv3 general queries" + log_test "IGMPv3 QQIC non linear value 160" + + RET=0 + # 1 is sent immediately, MLDv2 QQIC should match with non linear value 160s + vlmc_check_query mld 2 $swp1 1 1 qqic 160 + check_err $? "Wrong QQIC in generated MLDv2 general queries" + log_test "MLDv2 QQIC non linear value 160" + + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_igmp_version 2 + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_mld_version 1 bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_startup_query_count 2 bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_interval 12500 } @@ -468,11 +566,47 @@ vlmc_query_response_intvl_test() check_err $? "Wrong default mcast_query_response_interval global vlan option value" log_test "Vlan mcast_query_response_interval global option default value" + log_info "Vlan 10 mcast_query_response_interval (MRC) test cases:" + RET=0 + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_startup_query_count 0 + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_igmp_version 3 + check_err $? "Could not set mcast_igmp_version in vlan 10" + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_response_interval 600 + check_err $? "Could not set mcast_query_response_interval in vlan 10" + # 1 is sent immediately, IGMPv3 MRC should match with linear value 60 units of 1/10s + vlmc_check_query igmp 3 $swp1 1 1 mrc 60 + check_err $? "Wrong MRC in generated IGMPv3 general queries" + log_test "IGMPv3 MRC linear value 60" + + RET=0 + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_response_interval 1600 + check_err $? "Could not set mcast_query_response_interval in vlan 10" + # 1 is sent immediately, IGMPv3 MRC should match with non linear value 160 unit of 1/10s + vlmc_check_query igmp 3 $swp1 1 1 mrc 160 + check_err $? "Wrong MRC in generated IGMPv3 general queries" + log_test "IGMPv3 MRC non linear value 160" + + RET=0 + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_mld_version 2 + check_err $? "Could not set mcast_mld_version in vlan 10" + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_response_interval 3000 + check_err $? "Could not set mcast_query_response_interval in vlan 10" + # 1 is sent immediately, MLDv2 MRC should match with linear value 30000(ms) + vlmc_check_query mld 2 $swp1 1 1 mrc 30000 + check_err $? "Wrong MRC in generated MLDv2 general queries" + log_test "MLDv2 MRC linear value 30000" + RET=0 - bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_response_interval 200 + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_response_interval 6000 check_err $? "Could not set mcast_query_response_interval in vlan 10" - log_test "Vlan 10 mcast_query_response_interval option changed to 200" + # 1 is sent immediately, MLDv2 MRC should match with non linear value 60000(ms) + vlmc_check_query mld 2 $swp1 1 1 mrc 60000 + check_err $? "Wrong MRC in generated MLDv2 general queries" + log_test "MLDv2 MRC non linear value 60000" + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_igmp_version 2 + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_mld_version 1 + bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_startup_query_count 2 bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_response_interval 1000 } -- 2.43.0